import type { CandleMetrics, CandlePoint } from "../types";
import type { ChartPadding } from "./line";
export interface CandleRect {
    x: number;
    y: number;
    w: number;
    h: number;
    up: boolean;
}
export interface CandleWick {
    x: number;
    y1: number;
    y2: number;
    up: boolean;
}
export interface CandleGeometry {
    bodies: CandleRect[];
    wicks: CandleWick[];
}
export interface CandleFocusClip {
    x: number;
    y: number;
    width: number;
    height: number;
}
/** Stable off-canvas clip used when no candle is focused. */
export declare const HIDDEN_CANDLE_FOCUS_CLIP: CandleFocusClip;
/**
 * Keep the full-strength candle pass visible while a candle is selected and
 * while the shared dimmed batch is still returning to full opacity. The latter
 * prevents the selected candle from briefly dropping to the dim opacity when a
 * scrub ends or moves into a gap.
 */
export declare function computeCandleFocusPassOpacity(scrubActive: boolean, hasScrubCandle: boolean, inactiveCandleOpacity: number): number;
/**
 * Return the visible screen-space time slot occupied by one candle bucket.
 * The focus renderer clips the existing batched candle paths to this strip,
 * repainting only the selected body and wick without building another SkPath.
 */
export declare function computeCandleFocusClip(candle: {
    time: number;
} | null, padding: ChartPadding, canvasW: number, canvasH: number, winStart: number, windowSecs: number, candleWidthSecs: number): CandleFocusClip;
/**
 * Build screen-space candle bodies and wicks for a visible window.
 * Pure worklet — no Skia imports, consumed by useCandlePaths.
 */
export declare function buildCandleGeometry(candles: CandlePoint[], liveCandle: CandlePoint | null, padding: ChartPadding, canvasW: number, canvasH: number, winStart: number, windowSecs: number, displayMin: number, displayMax: number, candleWidthSecs: number, metrics?: CandleMetrics): CandleGeometry;
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